The U-Bahn doesn’t run on weeknights
Berlin might be one of the great nightlife capitals of the world, but the U-Bahn stops running around 1am, Sunday-Thursday, meaning you can either take the night bus (slow), jump in a taxi (expensive), or just stay at the party until 5am when it starts back up again.
Stores are closed on Sundays
On the one hand, this escape from consumerist culture is a nice relief. That is, until you need to go all the way to one of the three main train stations to buy groceries, because that’s the only option on a Sunday. Fortunately, bars, restaurants, and clubs are open on the Sabbath, ready to take your euros.
The radio fee
Yes, you have to pay an annual €250+ (around $280) bill for radio and television, even if you don’t own a TV or radio. It's nuts. Much like in America, German broadcast media is privatized, but with regulations that mandate a certain amount of “smart” content (like PBS). Instead of being paid for with federal tax revenue though, the funding comes from a government-mandated fee that is paid to a private broadcasting company. This nuance is meant to add a layer of separation between media and the government, which is presumably a good thing. But it doesn’t feel that way when the bill arrives.